Answer:
should be the last one 5-i8
I: 635=dimes*10+quarters*25
or shorter
635=d*10+q*25
II: d=q*3+3
Substitute II (d=3q+3) into I to replace d:
635=d*10+q*25
635=(3q+3)*10+q*25
635=30+30q+25q
605=55q
11=q
-> 11 quarters
"What expression represents the number of dimes if q represent quarters"
insert q=11 into II:
II: d=q*3+3
d=11*3+3
d=33+3
d=36
5/8 - 2/8 = 3/8, and 3/8 simplify into 0.375, so he have 0.375 pounds of trail mix left.
Answer: 62-48=14
Step-by-step explanation: therefor the bottom right hand corner is 14.
hope this is right ;)
